The phrase "and a host of other improvements" is correct and usable in written English.
It can be used to indicate that there are many additional enhancements or changes beyond those already mentioned.
Example: "The software update includes a new user interface, enhanced security features, and a host of other improvements that will enhance user experience."
Alternatives: "and numerous other enhancements" or "along with many other upgrades".
Figuring that some owners would be unfulfilled by the 400 horses in the standard X6 xDrive 50i, BMW has girded that car's 4.4-liter V-8 with a pair of expensive twin-scroll turbochargers — cleverly nestled in the valley between the engine's two banks of cylinders — along with new pistons and cylinder heads and a host of other improvements.
The new PogoPlug features four USB ports, a new address book feature, global search across all the drives attached to a PogoPlug and all the PogoPlugs associated with a single account, and a host of other improvements.
Goldcar is introducing self-service terminals at its busiest locations and, he says, a host of other improvements.
Of course USB 3.0 brings a host of other improvements over the 2.0 spec and eSATA.
This would also enable 720p video chat in iChat and a host of other interesting improvements to Apple's video offerings.
And it could also be used to fix roads and bridges and support a host of other genuine improvements.
The agency will also continue a host of other airport improvements and begin planning for a permanent ferry terminal at Battery Park City and one at La Guardia Airport.
More power, revised styling, improvements to the transmission and a host of other tweaks incrementally increased the performance year to year.
As a response to this and a host of other challenges within our bases, new protection of civilian sites were established, allowing improvement in living conditions.
Our theorem is an improvement of the results of Dong et al. [2], Matsushita and Takahashi [1], Nakajo and Takahashi [19] and a host of other results.
The cost of electrifying the Great Western Railway mainline has tripled from the original estimate to as much as £2.8bn, an overrun that puts a host of other rail improvement schemes in doubt.
